trans-N,N,N′,N′-Tetrakis(carboxymethyl)cyclohexane-1,2-diammonium tetrachloridocadmium(II) tetrahydrate

Abstract

In the title compound, (C14H24N2O8)[CdCl4]·4H2O, the Cd atom in the tetra­hedral [CdCl4]2− anion lies on a twofold rotation axis, and the diprotonated organic mol­ecule, trans-N,N,N′,N′-tetra­kis(carb­oxy­meth­yl)cyclo­hexane-1,2-diammon­ium, has 2 symmetry with the twofold rotation axis running through the mid-point of two C—C bonds in the cyclo­hexane unit. In the crystal structure, classical intra­molecular O—H⋯O and N—H⋯O and inter­molecular O—H⋯O, N—H⋯O, O—H⋯Cl and C—H⋯Cl hydrogen bonds are observed.